Dispensing pump



Nov. l5, 1927. 1,649,269

c. L, BASTIAN ET A1.

DISPENSING PUMP Fled June 14A 1926 if Ww Mam@ 2 7 l u S35 @1 j 7 4 ,o

Patented ov. l5, l927.,

CHARLES L. BASTIAN AND PETER KOCH, OF CHGAGO, ILLINOIS, .ASSIGNORS TO THE IBASIIANjBLESSING COMPANY, OF GHCAGO, ILLINOIS, A CORPORATION OF LL- NDIS.

DISPENSING FHM?.

Application led .Tune le, 1926.

This invention relates to dispensing pumps of the kind which are used in soda fountain jars and other receptacles for dispensing a charge of syrup. mill: or other liquids.

The object ot the invention is to provide a dispensing pump of simple construction having a discharge plunger operating to a Constant limit for its up or return stroke and means whereby the down stroke ot the plunger may he adjusted to regulate the charge dispensed.

ln the accompanying drawings illustrating a selected embodiment o' the invent-ion,

Fig. l is an elevation illustrating the invention.

Fig. 2 is a sectional elevation.

Fig. 3 is a detail view of parts separated in position tor assembly.

Referring to the drawin Os the pump comprises a charge chamber 5 and a hollow head or housing 6 connected by a rod 7. A discharge tube 8 .is connected at 9 to the bottom ot the chamber 5 and it entends up through the plate l() oi the head and is provided with a spout ll. A plunger l2 operates in the chamber .5 and it is mounted on the rod 13 which extends through the plate and into the head G and through the bridge le therein which forms a guide for the rod. A. hollow cap 15 is screw threaded on the head to receive the upper end ot the plunger rod 13. A rock shaft 16 is mounted in the head and it is provided with parallel crank arms li' which are pivotally engaged at their outer ends 18 to liulrs lf) which are pivotally engaged at 2O to a. collar 2l rigid on the plunger rod. A. handle is mounted on the shaft i6 outside ol' the head 6 for op erating the plunger rod through the cranlr arm li and linlis i9 to thrust the plunger in the chamber 5 to discharge the contents thereof. llhis chamber is provided with a valved opening 23 in its bottom and with lugs 2st on its bottom to space the valved opening from the bottom ol' the receptacle upon which the chamber may be rested.

rlhe plunger rod projects through a threaded opening 25 in the plate 10 which is larger' in diameter than the rod. This plunger rod is made in two sections, a lower Serial No. 115,322.

section 18 which carries the plunger, and an upper section 13 which is connected with the operating mechanism. These two plunger rod sections are connected by a coupling ot any suitable construction such as'V aboss 2601i the upper end of the section 1S having a transverse slot 27 therein opening through one side ot the boss and having an opening at the top of the boss to provide an inwardly projecting tlange 2S. The lower end of the upper section 13 ot the plunger rod has a peripheral groove 29 adjacent its end to provide a flanged end 30. This flanged end ot the upper section is inserted in the slot 27 through the open end thereof, after which the two sections are centered. A collar 3l is arranged to lit on the boss 26 and over the coupling, and it has an opening 32 to receive the section 1.3.

Asleeve 33 is arranged on the upper section oit the plunger rod, and its upper portion 33' is threadedto engage the threaded opening 25 in the plate 10. A lock uut 34k is arranged on this threaded portion of the sleeve to engage the plate l0 for holding the sleeve in adjusted position. A spring 35 is arranged on the plunger rod between the sleeve 33 and the collar 2l to hold the plunger andplunger rod normally in up position and to return them to up position after 4 the plunger has been thrust downward. The sleeve is recessed interior-ly at 33 to receive the spring.

rlhe invention provides a simple means whereby the down thrust of the plunger may he adjusted to regulate the charge of liquid discharged at each operation of the plunger. rlhis is accomplished hy adjusting the sleeve 33 andby securing the sleeve in adjusted position by the nut 34. 'lhe down thrust or stroke ot the plunger limited by engagement ot thecollar 2l rigid on the plunger rod with the upper end of the ad- `iusting sleeve 33; the up or return stroke of the plunger is always to the same limit provided by engagement of the collar 2l with the bridge 14. Thus the charge is regula-ted by adjusting the down stroke ol the plunger, the return stroke always being the same so tar the limit of its movement El l) is concerned. The construction is simple and substantial, the adjustment is easily eliected, and it is constantly maintained. The parts are relatively few in number and are combined for etiicient operation.

We are aware that changes in the term, construction and arrangement ot parts ot our invention may be made without depart.- ing from the spirit or sacrificing any ot' the advantages thereot and we reserve the right to make all such changes as tairljv tall within the scope ot' the following claims.

lVe claim:

1. In a dispensing pump, theI combination ot a charge chamber, a discharge tube leading from the chamber, a plunger operating in the chamber, a plunger rod connected to said plunger, a head enclosing the upper end of the plunger rod, a bridge in said head vforming a guide for the plunger rod. and a collar on the plunger rod and providing a constant limit for the return stroke of the plunger and plunger rod.

2. In a dispensing pump, the combination of a charge chamber', a discharge tube leading from the chamber, a plunger operating in the chamber, a plunger rod connected to said plunger, a head enclosing the upper end of the plunger rod, a plate, a sleeve forming a guide for the plunger rod and adjustable in said plate, a collar on the plunger rod to engage an end of the sleeve for limiting the down stroke of the plunger and plunger rod, and means adjustable on the sleeve to engage said plate for holding the sleeve in the adjusted position.

3. In a dispensing pump, the combination of a charge chamber, a discharge tube leading from the chamber, a plunger operating in the chamber, a plunger rod connected to said plunger, a head enclosing the upper end ot the plunger rod, a bridge in said head forming a guide for the plunger rod, a plate at the bottom of the head, a sleeve forming a guide for the plunger rod and adjustable in said plate, a collar on the plunger rod te engage an end of the sleeve for limiting the down stroke of the plunger and plunger' rod and so engage the bridge for limiting the return stroke of the plunger rod, and a springl arranged on the plunger rod between the sleeve and the collar for returning thel plunger and plunger rod to normal position.

4. In a dispensing pump, the combination of a charge chamber. a discharge tube leading from the chamber, a plunger operating in the chamber, a plunger rod connected to said plunger', non-adjustable and adjustable stop means located adjacent the upper end ot the plunger rod, and non-adjustable means fixed to the plunger rod between said non-adjustable and adjustable stop means and providing a constant limit for the return stroke thereof by engagement with said non-adjustable stop means and providing diversitied limit for the down stroke of thc plunger and plunger rod b v engagement with said adjustable stop means.

5. In a dispensing pump, the combination of a charge chambe a discharge tube leading trom the chamber, a plunger operating in the chamber, a plunger rod connected to said plunger, stop means located adjacent the upper end ot the plunger rod. a sleeve adjustable in position on the plunger rod. and non-adjustable means atlixed to the rod and providing a constant limit t'or the. return stroke thereof b v engagement with said stop means and providing a diversitied limit for the down stroke thereof h v engagement with said sleeve, a handle arranged alongside of said plunger rod, and links connecting said handle and said plunger rod for operating the rod.

6. In a dispensing pump, the combination of a charge chamber, a discharge tube leading from the chamber, a plunger operating in the chamber, a plunger rod connected to said plunger. a head, stop means located within the head, a sleeve adjustable in position on the plunger rod and in the head. and means carried by the plunger rod and providing a constant limit for the return stroke thereof by engagement with said stop means and providing a diversified limit for the down stroke thereof| bj' engagement with said sleeve.

T. In a dispensing pump, the combination of a charge chamber, a discharge tube leading from the chamber, a plunger operating in the chamber, a plunger rod connected to said plunger, a head comprising a plate having a threaded opening, a sleeve tln'cadedlv engaging the openingin said plate and l'orming a guide for the plunger rod, stop means located adjacent the upper end of the plunger rod and arranged above said plate and means carried by the plunger rod and providing a constant limit tor the return stroke thereof by engagement with said stop means and providing a diversitied limit for the down stroke thereotl b v engagement with said sleeve.

S. In a dispensing pump, the combination of a charge chamber, a discharge tube leading from the chamber, a plunger operating in the chamber. a plunger rod connected to said plunger. a head enclosing the upper end ot the plunger rod, non-adjustable and adjustable stop means within the head. and means carried by the plunger rod and providing a constant limit tor the return stroke thereof by engagement with said non-adjustable stop means and providing a diversitied limit tor the down stroke thereof b v engagement with said adjustable stop means.

9. In a dispensing pump, the combination of a charge chamber, a discharge tube leadltlt) ltlfi llt) lill) e Jthe plunger rod and located Within the head,

ing from the chamber, a plunger operating the travel of the plunger rod in opposite in the ehzunloer, a` plunger rod connected to directions, one of said stops being adjustable said plunger, e head enclosingthe upper end in the direction of movement of the plunger 10 ol the plunger rod, an abutment carried by rod.

stop members located at opposite sides of the CHARLES L. BASTIAN. abutment and in the path thereof to limit PETER KOCH. 

